[NCARC] Help with Interference

[Justin King]

Hello all;

 

Some of you will get this twice as I am sending this to both the NCARC list
and the ARES D-10 group for help.  I am having a great deal of difficulty
with some 2 meter FM interference in my neighborhood.  I have narrowed it
down to one or two cul-de-sacs in the neighborhood about 200 to 300 yards
from the house.  I have made circles around the noise source so I'm pretty
confident of its approximate whereabouts

 

This problem has been going on for months now and has slowly been getting
worse.  Why it is on FM is beyond me.I would expect HF to be affected by
this and it is not.

 

I have two audio clips on my website in wave format if you are willing to
take a listen.  Mike, N7DQ, was helping me find the general vicinity of the
audio source this evening.  The files are located at
http://n0aol.nti-llc.net/interference/.  I have a clip from this morning
when we were on 146.550 simplex (which we then changed to a quiet 147.510)
and then the PM recording is from 147.475 simplex which has an S4 reading
when it hits on the base radio.  Note that 146.550 is silent right
now.unlike this morning.

 

The signal changed frequencies from morning to PM, and it went up in
frequency, maybe has something to do with the morning dew on everything from
how humid it has been lately and then drying out later in the day??

 

I am stuck.I don't know where to go from here.  I don't think I can report
anything to any kind of "officials" as I don't know what the noise source
is.if someone can identify the pulsing and can tell me what to look for in
terms of faulting equipment I would be ever so appreciative and grateful.

 

Thank you very much!

Justin King

N0AOL